Safety and environmental issues

Safety is of overriding importance in operations of the X1A beamline, and in any of our activities. According to your NSLS safety training, you have the right to issue a stop work order in any situation where you feel that safety is being compromised.

The beamline is a safe place to work at provided you use common sense, think twice about what you're doing, and follow your NSLS safety training. You should be aware that there are certain equipment items that produce high voltages; these are shown in Tables 1.1, 1.2, and 1.3.

Procedures for getting NSLS approval for your experiment, and the safety checklist that must be completed before shutters can be enabled, are shown on a separate web page.

The NSLS also provides procedures and facilities for the disposal of chemical and biological wastes. These are described on the NSLS ES&H web page.

Table 1.1: Gauges and gauge controllers, all of which have high voltages present. IG refers to an ionization gauge, PG refers to a Penning (cold cathode) gauge, GP refers to Granville-Phillips, and PE refers to Perkin-Elmer.

Gauge	Location	Controller
IGFE	Front end	GP 271
IG1	LBL mirror chamber	PE DGC III
IG3	M1o chamber	GP 303 w/IG4)
IG4	M1i chamber	GP 303 (w/IG3)
IG6i	SGMi chamber	GP 303 (w/IG5i)
IG7i	Upstream of P7i, ExSi	GP 303 (w/IG8i)
IG8i	Upstream of ExSi	GP 303 (w/IG7i)
IG9i	Downstream of ExSi	GP 350
IG5o	Outboard branch pipe section	GP 350
IG6o	SGMo chamber	GP 350
IG7o	Upstream of pump P6o, ExSo	PE DGC III
PG9o	Downstream of ExSo	CVC Penthervac

Table 1.2: Ion pumps and controllers, all of which have high voltages present. PE refers to the Perkin-Elmer company.

Ion pump	Location	Controller
P1	LBL mirror chamber	PE CVIPC
P3	M1o chamber	PE CVIPC
P4	M1i chamber	PE Digitel 500
P6i	SGMi chamber	PE CVIPC
P7i	Upstream of ExSi	PE Digitel 500
P8i	Downstream of ExSi	PE Ion-Pak
P5o	SGMo chamber	PE Digitel 500
P6o	Upstream of ExSo	PE Digitel 500
P7o	Order Sorting Mirror	Gamma Vacuum MPC
P8o	Snout Section	Gamma Vacuum MPC

Table 1.3: Other high voltage sources in the beamline.

Inboard STXM Physique Instrumente piezo driver (100 volt DC max, low current output on high-voltage LEMO connectors)

Outboard STXM Physique Instrumente piezo driver (100 volt DC max, low current output on high-voltage LEMO connectors)

Outboard STXM proportional counter high voltage bias supply (1100 volt DC max, on SHV connectors, with a $<100$ $\mu$A current trip point.