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(last update 28 March 1995)
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Beam Max.Momentum Intensity for 10E12 incident Beam type
(GeV/c) protons at 450 GeV/c
H1 450 ~ 1E6 pi+ at 350 GeV/c 1) high-energy hadron or electron beam
~ 1E8 pi+ at 200 GeV/c
~ 1E6 e± at 200 GeV/c
~ 1E5 Sigma- at 350 GeV/c 2) high-energy hyperon beam
(for 2E10 inc. protons)
~ 1E6 Pb at 400 GeV/Z 3) heavy ions beam
H3 200 ~ 1E8 pi+ at 200 GeV/c 1) hadron or electron beam, serves to produce X1,X3,X5,X7
~ 1E7 pi- at 200 GeV/c
~ 1E6 e± at 200 GeV/c
~ 1E6 Pb at 400 GeV/Z 2) heavy ions beam
X1 70 1E2 -> 1E4 tertiaries / test beam
1E7 incident particles e, pi, mu
X3 50 1E2 -> 1E4 tertiaries / test beam
1E7 incident particles e, pi
X5 100 1E2 -> 1E4 tertiaries / test beam
1E7 incident particles e, pi, mu
X7P 100 1E2 -> 1E4 tertiaries / test beam
1E7 incident particles e, pi
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Beam Max.Momentum Intensity for 10E12 incident Beam type
(GeV/c) protons at 450 GeV/c
H2 400 9E7 pi+ at 200 GeV/c 1) High-energy hadron or electron beam (also test beam)
3E7 pi- at 200 GeV/c
4E6 e± at 150 GeV/c
1E5 Pb at 400 GeV/Z 2) Heavy ion beam
H4 450 pi, e fluxes similar to H2 1) High-energy hadron or electron beam
~ 1E7 protons at 450 GeV/c 2) Attenuated primary beam
~ 1E7 Pb 3) Heavy ion beam
H6 205 1E8 pi+ at 150 GeV/c Medium energy hadron beam, also used to produce tertiary test beams
4E7 pi- at 150 GeV/c
H8 450 ~ 1E7 protons at 450 GeV/c 1) Attenuated primary or high-energy hadron (e±) beam
2E8 pi+ at 200 GeV/c or electron beam
7E7 pi- at 200 GeV/c
~ 1E6 Pb at 400 GeV/Z 2) Heavy ion beam
M2 225 2E7 mu+ at 100 GeV/c High-intensity (polarised) muon beam
3E6 mu- at 200 G eV/c
P41/P61 450 < 1E11 protons at 450 GeV/c Primary beam to transport protons or ions from T4 or T6 to ECN3 (NAHIF)
> 5E7 Pb at 400 GeV/Z
K12 450 1E7 KL > 50 GeV/c Simultaneous KS and KL beams to ECN3
3E2 KS > 50 GeV/c
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This is the high-energy beam to the Omega spectrometer. It can provide heavy ion beams,
attenuated primary proton beams as well as high-energy secondary hadron beams.
A special mode allows it to produce a high-energy hyperon beam to Omega.
The following versions of the optics exist:
- Proton optics:
- Hadron optics:
- Heavy ion optics:
- Hyperon beam optics:
Experiments along this beam:
- WA89 - Zones PPE 091, PPE191
- WA102 - Zones PPE 091, PPE191
- WA92 - Zones PPE 091, PPE191
Test facilities along this beam
- None
Liaison physicist: Per Grafström
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This is a high-energy general purpose beam, serving either as parent beam for the tertiary
test beams in the West Area or as secondary hadron beam or heavy ion beam to physics experiments.
The following versions of the optics exist:
- Parent beam for test beams : Optics drawing (Postscript)
- Heavy ion optics: Optics drawing (Postscript)
- Hadron optics:
Experiments along this Beam:
- WA98 - Zone PPE 103
Test facilities along this Beam:
- X3A - Zone PPE 083
Liaison physicists: Per Grafström and
Lau Gatignon
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This is a highly versatile tertiary test beam with energies up to 80 GeV/c. The user is completely
free to choose either electron, pion or muon beams of energies in the range specified above.
The following versions of the optics exist:
- Test beam optics: Optics drawing (Postscript)
Experiments along this Beam:
- None
Test facilities along this Beam:
- X1A - Zone PPE 101
User Guide
Liaison physicist: Per Grafström
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This is a highly versatile tertiary test beam with energies up to 50 GeV/c. The user is completely
free to choose either electron or pion beams of energies in the range specified above.
The following versions of the optics exist:
- Test beam optics: Optics drawing (Postscript)
Experiments along this Beam:
- None
Test facilities along this Beam:
- X3A - Zone PPE 083
- X3A / OMEGA - Zone PPE 083
User Guide
Liaison physicist: Per Grafström
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This is a highly versatile tertiary test beam with energies up to 100 GeV/c. The user is completely free to
choose either electron, pion or muon beams of energies in the range specified above.
The following versions of the optics exist:
- Test beam optics: Optics drawing (Postscript)
Experiments along this Beam:
- None
Test facilities along this Beam:
- X5A - Zone PPE 105
- X5B - Zone PPE 115
User Guide
Liaison physicist: Lau Gatignon
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This is a highly versatile tertiary test beam with energies up to 100 GeV/c. The user is completely
free to choose either electron, pion or muon beams of energies in the range specified above. However,
while the CHORUS emulsions are installed in the BEBC hall (downstream of the West Area), the momentum
is constrained to be below 50 GeV/c and of opposite sign to the secondary H3 beam. This makes it
impossible to run the beam in muon mode.
The X9 version of the beam denotes a dedicated test beam facility for the WA95/CHORUS experiment.
The following versions of the optics exist:
- X7 test beam optics: Optics drawing (Postscript)
- X9 direct beam optics: Optics drawing (Postscript)
- X9 test beam optics: Optics drawing (Postscript)
- X9 muon beam optics: Optics drawing (Postscript)
Experiments along this Beam:
- None
Test facilities along this Beam:
- X7A - Zone PPE 077
- X7B - Zone PPE 097
- WA95/CHORUS - tests no controlled area
User Guide for the X7 beam
User Guide for the X9 beam
Liaison physicist: Lau Gatignon
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This is a high-energy general purpose beam, suitable both for tests and experiments.
The following versions of the optics exist:
- Parallel optics for NA43: Optics drawing (Postscript)
- Heavy ion optics:
- Test beam optics (mixed mode): Optics drawing (Postscript)
Experiments along this Beam:
- NA43 - Zone PPE 142
- NA49 - Zone PPE152
Test facilities along this Beam:
- H2A - Zone PPE 172
User Guide
for the H2A zone.
Liaison physicist: Niels Doble
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This is a high-energy general purpose beam, suitable both for tests and experiments.
The following versions of the optics exist:
- High-resolution optics:
- High-acceptance optics:
- Heavy ion optics: Optics drawing (Postscript)
- Test beam optics (mixed mode): Optics drawing (Postscript)
Experiments along this Beam:
- NA44 - Zone PPE 134
Test facilities along this Beam:
- H4A - Zone PPE 154
- H4B - Zone PPE 164
User Guide
for the H4A zone.
Liaison physicist: Niels Doble
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This is a secondary or tertiary test beam with energies in the range between 5 and 205 GeV/c.
However, the secondary beam momentum is coupled to the H8 and P41/P42 beam momenta.
The beam is also used by the NA52 experiment as a high-resolution spectrometer for searches of
particles produced in collisions of high energy lead ions with heavy target atoms.
The following versions of the optics exist:
- High transmission optics: Optics drawing (Postscript)
- Test beam optics (mixed mode): Optics drawing (Postscript)
Experiments along this Beam:
- NA52 - Zone 156. Uses the full H6 beam as a spectrometer.
Test facilities along this Beam:
- TIS/RP - Zone PPE 126
- H6A - Zone PPE 146
- H6B - Zone PPE 156
- H6C - Zone PPE 166
User Guide
Liaison physicist: Konrad Elsener
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This is a high-energy general purpose beam, suitable both for tests and experiments.
In microbeam mode it can provide a very small spot attenuated primary proton beam.
The following versions of the optics exist:
- High-resolution optics:
- High-acceptance optics:
- Test beam optics (mixed mode): Optics drawing (Postscript)
- Microbeam optics: Optics drawing (Postscript)
- Heavy ion optics: Optics drawing (Postscript)
Experiments along this Beam:
- P280 - Zone PPE 138
Test facilities along this Beam:
- H8A - Zone PPE 158
- H8B - Zone PPE 168
User Guide
Liaison physicist: Konrad Elsener
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This is the CERN high-intensity muon beam. It consists of an approximately 600 metres long pion and
kaon decay channel, at ther end of which the remaining hadrons are observed in up to 9.9 metres of
Beryllium. The remaining muon beam is shaped and cleaned in the 400 metres long muon section of the beam.
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The following versions of the optics exist:
- Hadron section optics: Optics drawing (Postscript)
- Muon section optics: Optics drawing (Postscript)
Experiments along this Beam:
- NA47 (SMC) - Zones PPE211, PPE221
User Guide
Liaison physicist: Lau Gatignon
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These beams are high-intensity proton transport beams from the primary targets T4 (P41)
or T6 (P61) to the experimens at the Jura side of ECN3. The branch P61 can also serve as a heavy ion beam.
If necessary, secondary beams can be created from a secondary target located some 200 metres upstream
of the end of ECN3. Depending on requirements in the H8 and H6 beams, pure and high-resolution electron
beams can be provided by conversion of
photons produced in T4.
The following versions of the optics exist:
- Attenuated proton optics: Optics drawing (Postscript)
- Heavy ion optics: Optics drawing (Postscript)
- Electrons from conversion of photons from T4: Optics drawing (Postscript)
- Test beams from secondary target: Optics drawing (Postscript)
Experiments along this Beam:
- NA50 - Zone ECN3
Short User guides exist for the
P41,
P61 and
H10 beams.
Liaison physicist: Lau Gatignon
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The P42 beam is a transport system for primary proton beams from P4 to the T10 target.
The K12 beam consists of simultaneous KL and KS beams coinciding at the NA48 experiment
at the Salève side of ECN3. The KL beam is a secondary beam produced at T10. A small
fraction of the protons that traverse T10 without interaction are recuperated by a bent
Silicon crystal and transported to a KS target, located some 120 metres downstream of T10.
The KS target is 72 mm above the KL beam axis and from there the KS beam is produced and
steered to converge with the KL beam with an angle of 0.6 milliradians. A
schematic view
of the K12 beam layout is available.
Under certain conditions an electron calibration beam can be made available for the
detectors in ECN3 by conversion of photons originating from T4.
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The following versions of the optics exist:
- P42 proton optics: Optics drawing (Postscript)
- K12 proton optics between T10 and KS target: Optics drawing (Postscript)
- Electrons from conversion of photons from T4: Optics drawing (Postscript)
Experiments along this Beam:
- NA48 - Zone ECN3
User Guide
The geometry data for the layout of beam and experiment can be found
here .
Liaison physicist: Niels Doble
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