====== BLM ======

Beam loss monitoring system (BLM) is used to monitor the beam losses. If beam interacts with the inner side of a beam tube, the lost particles hit the walls and create secondary particle showers, which can be observed and measured outside of the beam tube
  * plastic scintillators are very fast and suitable for all types of losses
  * the usage is recommended for loss rates up to few 10^7 counts per second
  * each detector has the same response function

{{::blm1.png?direct&200|}} {{:blm2.png?direct&200|}}

  * based on plastic scintillator 
  * 16 (18) locations along the HADES beamline
  * stand alone solution for LASSIE Data Acquisition System (HHT Dach)
  * fully FAIR compatible System 
  {{::blm3.png?direct&200|}}
  
===== BLM Locations =====
  

{{::blm_locations.png?direct&800|}}

|<color #ed1c24>1</color> |GS06DL5I |in front of magnetic Septum |
|<color #ed1c24>2</color> |GS06DL5A |behind magnetic Septum |
|<color #ed1c24>3</color> |GTE1DL1 |behind TE1QD12 |
|<color #ed1c24>4</color> |GTS1DL1 |behind TS1MU1 |
|<color #ed1c24>5</color> |GTE2DL1 |behind TE2QT13 |
|<color #ed1c24>6</color> |GTE3DL1 |behind TE3MU1 | 
|<color #ed1c24>7</color> |GTH1DL1 |behind TH1QD12 |
|<color #ed1c24>8</color> |GHHTDL1 |behind HHTMU1 |
|<color #ed1c24>9</color> |GTH2DL1 |behind TH2QD11 |
|<color #ed1c24>10</color> |GTH2DL3 |behind TH2QD12 |
|<color #ed1c24>11</color> |GTH2DL4 |behind TH2QD21 |
|<color #ed1c24>12</color> |GTH2DL5 |in front of TH3MU1 |
|<color #ed1c24>13</color> |GTH3DL1 |behind TH3MU1 |
|<color #ed1c24>14</color> |GHADDL1 |in front of HADQD11 |
|<color #ed1c24>15</color> |GHADDL2 |behind HADQD11 |
|<color #ed1c24>16</color> |GHADDL3 |behind HADQD12 |
|<color #ed1c24>17</color> |GHADDL4 |in front of HADQD41 |
|<color #ed1c24>18</color> |GHADDL5 |behind HADQD42 |

{{::th2dl3.jpg?direct&400|}}  {{::th3dl3.jpg?direct&300|}}

===== BLM DAQ and GUI =====

{{::blm_daq.png?direct&300|}} 

{{::gui1.png?direct&600|}} {{::gui2.png?direct&600|}}